Download Prozesskalibrator SIKA-EC-25-E00

ELMTEC
Operation Instruction
Multifunction Calibrator
EC 25
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
1 Introduction
This multifunction process calibrator (the calibrator in the following) is a handheld, battery-operated
instrument that measures and sources electrical and physical parameters. (See Table 1)
Table 1 Source and Measurement Function
Measurement
Function
Sourcing
Function
DCI
LOOP
OFF
LOOP
ON
OHM
FREQ
TC
RTD
SWITCH
CONT.
●
●
●
●
●
●
●
●
●
RAMP ON
×
×
×
×
×
×
×
×
×
RAMP OFF
DCV
DCI
DCV
●
●
●
●
●
●
●
●
●
OHM
●
●
●
●
●
●
●
●
●
FREQ
●
●
●
●
×
●
●
●
●
PULSE
●
●
●
●
×
●
●
●
●
SWITCH
●
●
●
●
×
●
●
●
●
TC
●
●
●
●
●
×
×
●
●
RTD
●
●
●
●
●
×
×
●
●
Note：● indicating simultaneous use is allowed
× indicating simultaneous use is not allowed
Except the functions listed in Table 1, the calibrator has the following features as well:
You can operate the measurement and source function simultaneously. The LCD screen is divided
into two separate districts, whose upper part displays measurement information and lower part
displays source information.
TC measurement/source terminals and built-in lead connector of same temperature (RJ
compensation with auto-reference joint point)
Manual step source and auto -step and sweeping –step source
Room temperature monitoring under any operation
Measurement/source temperature monitoring function
Measurement/source mA% display
Measurement wave-filter function
Measurement manual-holding function
Pressure source auto-holding function
2 Standard Accessories
Make sure that the package contains all the accessories listed below. And if you find they are damaged
or any of them is missing, please contact the vendor from which you purchased the product as soon as
possible.
Two set of Industrial testing Lead
A set of Testing Lead
A set of Alligator clip
A Thermocouple Convertor
A quick reference guide
A User's Manual
One Fuse 50mA/250V
One Fuse 63mA/250V
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
3 Safety Information
For the correct and safe use of the instrument, be sure to follow the cautionary notes stated in this
manual whenever handling the instrument. The Company shall not be held liable for any damage
resulting from use of the instrument in a manner other than prescribed in the cautionary notes.
A Warning identifies conditions and actions that pose hazards to the user; a Caution identifies
conditions and actions that may damage the meter or the equipment under test.
Refer to Table 2 for the explanation of the international electric symbols adopted by the calibrator or the
user’s manual.
Table 2 Explanations of International Electrical Symbols
WARNING
EARTH GROUND
INFORMATION
Warning
To avoid possible electric shock or personal injury:
Do not apply more than the rated voltage, as marked on the calibrator, between terminals or
between any terminal and earth ground;
Before use, verify the meter’s operation by measuring a known voltage;
Follow all equipment safety procedures;
Do not connect the probe of the testing lead with any live power when the other end has been
inserted into the current jack;
Do not use the meter if it is damaged. Before using the meter, inspect the case. Look for cracks or
missing plastic .Pay particular attention to the insulation surrounding the connectors;
Select the proper function and range for the measurement;
Make sure the battery door is closed and latched before operating the meter;
Remove test leads from the meter before opening the battery door;
Inspect the test leads for damaged insulation or exposed metal. Check test lead continuity. Replace
damaged test leads before using the meter;
When using the probes, keep fingers behind the finger guards on the probes;
Connect the common test lead before connecting the live test lead. When disconnecting test leads,
disconnect the live test lead first;
Do not use the meter if it operates abnormally. Protection may be impaired. When in doubt, have
the meter inspect;
Do not operate this instrument in areas where inflammable or explosive gases or vapor exists. It is
extremely hazardous to use the instrument under such environments;
Do not operate the meter around explosive gas, vapor, or dust;
When use the pressure module, do make sure the process pressure line is shut off and
depressurized before connecting or disconnecting the pressure module;
Use only type 4 AAA batteries, properly installed in the meter case, to power the meter;
Do disconnect the testing lead before shifting to different source or measurement functions;
When servicing the meter, use only specified replacement parts.
To avoid false reading, which could lead to possible electric shock or personal injury, replace the
) appears.
batteries as soon as the low battery indicator (
Caution
To avoid possible damage to meter or to equipment under test:
Disconnect the power and discharge all high-voltage capacitors before testing resistance or
continuity.
Use the proper jacks, functions, and ranges for the measurement or source operation.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
4 Familiar With the Calibrator
Figure1 Entire Graphic
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
4.1 Measurement/ Source Terminals
Figure 2 shows the measurement /source terminals of the calibrator. Table 3 explains their use.
Figure 2 Measurement/ Source Terminals
Table 3 Measurement/ Source Terminals
Terminal
Function
①
All the common (return ) （-）terminals of measurement function
②
Measurement
Signals（+）：DCV、OHM、FREQ、TC、RTD、SWITCH、CONT
③
Measurement Signals（+）：DCmA
④
3W Terminal：measurement terminal of the 3W OHM、RTD
LOOP Terminal：+24VDC Loop Power Terminal
⑤
Source Signals：（+）DCmA
⑥
Source Signals：（-）OHM、RTD
⑦
All the common (return ) （-）terminals of source function
⑧
Source
Signal：（+）DCV、OHM、TC、RTD、XMT、FREQ、CYC、SWITCH
Source Signal：（-）DCmA
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
4.2 Keys
Figure 3 shows keys of the calibrator. Table 4 explains their use.
Figure 3 keys
Table 4 Functions of the keys
No.
Name
1~5
Source value set
6~10 Source value set
11
Measurement ON
12
Source ON
13
Power
14
Backlight
15
Measurement FUNC
16
Source FUNC
17
TEMP
18
ZERO
19
20
21
22
Measurement RANGE
Source RANGE
AVG
25/100%
23
HOLD
24
START
25
LOOP
26
Function
Increment of source set point
Decrement of source set point
Turn on or off measurement function
Turn on or off source function
Turn on or off the power
Turn on or off the backlight
Select measurement function
Select source function
Turn on or off room temperature monitoring function. In TC source or
measurement function, turn on or off the RJ compensation function.
Set the source value to zero-point.
In pulse source function, set the pulse number.
Select measurement range Measurement mA and percentage shifting.
Select source range Source mA and percentage shifting.
Measuring average valueRelative measured value of pressure
In mA source function, select 25% or 100% manual step output mode.
In pulse number, frequency or switch source, set the frequency value.
Measured value holding
Source pressure and measure contact simultaneously, releasing the
locked pressure reading.
Source auto-pulse number, turn on mA auto-stepping or sweeping
function. Convert the sourced TC temperature and the mV, the
sourced RTD temperature and the Ohm.
24v Loop circuit power
Convert the measured TC temperature and the mV, the measured
RTD temperature and the Ohm.
In DCmA source function ,select the auto-wave mode.
In frequency or pulse source, set the source amplitude.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
4.3 Display Screen
Figure 4 shows a typical display screen.
Figure 4 typical LCD display
a：Battery level indicator
b：Measurement
c：Measurement function on
d：Measurement function off
e：Average value for measurement
f： Display –hold for measured value
g：Switch measurement
h：Unit of room temperature
i：Beeper of measurement continuity
j：Measured value
k：Unit of measured value
l：Divide line of measurement and source mode displays
m：Types of RTD measurement / source
n：Divide line of measurement and source mode displays
o：Types of TC measurement / source
p：Reference Junction Compensation On
q：24V Loop Power Supply on
r：Source
s：Source function on
t：Source function off
u：Set -point for source
v：Set information for source
w：Unit of set -point for source
x：Measurement pressure reading zero off
y：Source pressure reading zero off
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
5 Before starting source/measurement
Operating Precautions
Precautions for Safe Use of the Instrument
When using the instrument for the first time, be sure to read the instructions given in Section Four
“Precautions for Safe Use of the Instrument.”
Do not open the instrument’s case.
Contact the vendor from which you purchased the instrument, for a service of inspecting or
adjusting the internal assembly.
In case of failure
Should the instrument begin to emit smoke, give off an unusual odor, or show any other anomaly,
immediately turn off the POWER key. If you are using an Charger, disconnect the plug from the
wall outlet. Also cut off power to the object under test that is connected to the input terminals.
Then, contact the vendor from which you purchased the instrument.
Charger
Use an Charger dedicated to the instrument. Avoid placing any load on the Charger, or prevent any
heat-emitting object from coming into contact with the adapter.
General Handling Precautions
Before carrying around the instrument turn off power to the object under test, and then the POWER
key of the instrument. If you are using an Charger, disconnect the power cord from the wall outlet.
Finally, detach all lead cables from the instrument. Use a dedicated carry case when transporting
the instrument.
Do not bring any electrified object close to the input terminals, since the internal circuit may be
destroyed.
Do not apply any volatile chemical to the instrument’s case or operation panel. Do not leave the
instrument in contact with any product made of rubber or vinyl for a prolonged period. Be careful
not to let a soldering iron or any other heat-emitting object come into contact with the operation
panel, as the panel is made of thermoplastic resin.
Before cleaning the instrument’s case or operation panel disconnect the power cord plug from the
wall outlet if you are using an Charger. Use a soft, clean cloth soaked in water and tightly
squeezed to gently wipe the outer surfaces of the instrument. Ingress of water into the instrument
can result in malfunction.
If you are using an Charger with the instrument and will not use the instrument for a prolonged
period, disconnect the power cord plug from the wall outlet.
For handling precautions regarding the batteries, see “Installing or Replacing the Batteries”.
Never use the instrument with the cover of the battery holder opened.
Environmental Requirements
Use the instrument in locations that meet the following environmental requirements:
Ambient temperature and humidity
Ambient temperature range: 0 to 50℃
Ambient humidity range: 30 to 80% RH. Use the instrument under non-condensing condition.
Flat and level locations
Do not use the instrument in locations that are
Exposed to direct sunlight or close to any heat source.
Exposed to frequent mechanical vibration.
Close to any noise source, such as high-voltage equipment or motive power sources.
Close to any source of intensive electric or electromagnetic fields.
Exposed to large amounts of greasy fumes, hot steam, dust or corrosive gases.
Exposed to unstable or a risk of explosion due to the presence of flammable gases.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
Note:
Use the instrument under the following environmental conditions if precise source or measurement
is your requirement:
Ambient temperature range: 23±5°C;
Ambient humidity range: 20 to 80% RH(non-condensing)
When using the instrument within a temperature range of 0 to 18°C or 28 to 50°C, add a value
based on the temperature coefficient shown in Chapter 18“Specifications” to the given accuracy
rating.
When using the instrument at an ambient humidity of 30% or lower, prevent electrostatic charges
from being produced, by using an antistatic mat or any other alternative means.
Condensation may occur if you relocate the instrument from places with low temperature and
humidity to places with high temperature and humidity, or if the instrument experiences any sudden
temperature change. In that case, leave the instrument under the given ambient temperature for at
least one hour to ensure that the instrument is free from condensation, before using the instrument.
Installing or Replacing the Batteries
Warning
To avoid electrical shock, always remove the source or measurement lead cables from the object under
test, as well as from the instrument itself.
Caution
To avoid the risk of fluid leakage or battery explosion, install batteries with their positive and
negative electrodes correctly positioned.
Do not short-circuit the batteries.
Do not disassemble or heat the batteries or throw them into fire.
When replacing batteries, replace all of the four batteries at the same time with new ones from the
same manufacturer.
If the instrument will not be used for a prolonged period, remove the batteries from the instrument.
Step 1: Remove the lead cables and charger and turn off the calibrator before you begin installing
batteries.
Step 2: Remove the battery holder cover by sliding it in one-quarter counterclockwise direction and turn
off the calibrator.
Step 3: Install four alkaline batteries of same type in the battery holder with their positive and negative
electrodes positioned correctly as indicated on the holder.
Step 4: After replacement, reattach the battery holder cover.
Indication of Battery Level
The battery replacement indicator shows the battery level in five steps according to the measured
voltage of the batteries.
Full battery:
The battery level is below 50% full:
The battery level is below 25% full:
Low battery:
The dictation flashes in sequence when getting charged.
Note that the battery replacement indicator is driven by directly measuring the battery voltage when the
calibrator is in actual operation. Consequently, the indicator may read differently depending on the
battery load condition (e.g., the load condition of the source output or on/ off state of the measurement
function) if the batteries are too low. If the calibrator will be used under a wide variety of conditions, it is
advisable that the battery replacement indicator be verified under heavy loads (MEASURE mode is on
and the SOURCE mode is set to the 20 mA/10 V output).
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
Connecting the Charger
Warning
Make sure the voltage of the AC power source matches the rated supply voltage of the Charger,
before connecting the Charger to the AC power source.
Do not use any Charger other than the dedicated Charger from the Company.
Do not charge non Ni-Cd, Ni-MH batteries or wasted batteries.
Step 1: Make sure the calibrator is turned off.
Step 2: Insert the plug of the optional Charger into the Charger connection jack.
Note
Turn off the calibrator before connecting or disconnecting the Charger from AC power, plugging
in/out the Charger connection jack.
Plug out the Charger from the Charger connection jack of the calibrator when discharging.
Do not charge the calibrator without any battery in.
Turning On the Power
Pressing the Power key once when the power is off turns on the calibrator.
Pressing the Power key for 2 seconds turns off the calibrator.
Turning On/Off MEASURE Mode
The measurement function is in off state after turning on the calibrator.
If the MEASURE function is not needed and therefore turned off, power to the measurement circuit
is also turned off within the calibrator. Thus, you can save on battery power if the calibrator is
running on batteries.
Turning off the MEASURE function causes the on-screen measured value to disappear, and the
“OFF” indicator appears on the display simultaneous.
To resume measurement when the MEASURE function is off, press the key once again.
Automatic Power-off
When the calibrator is running on batteries and no key is operated for approximately ten minutes, the
calibrator turns off automatically. The automatic power-off time could be reset in the factory default
parts, see Chapter 10 “Factory Default”.
Turning On/Off the Backlight
The LCD can be backlit. Pressing the key turns on the backlight, while pressing the key once again
turns it off. This feature makes it easier for you to view the LCD when operating the calibrator in dark
places or when carrying out source or measurement. Battery life shortens when the calibrator is
operated on batteries.
Note
The backlight automatically turns off after 30 seconds. Press the key once more to relight it.
The time could be reset in the factory default parts, see Chapter 10 “Factory Default”.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
6 Source
From the calibrator, you can source a DC voltage, DC current, resistance, thermocouple, RTD,
frequency, pulse signal or contact output.
Warning
To avoid electrical shock, do not apply more than the rated voltage, as marked on the calibrator,
between terminals or between any terminal and earth ground. Always use the calibrator in locations
with a voltage to ground below 30 V.
Caution
Do not apply any voltage to the output terminals for ranges other than 4-20mA simulating
transmitter output Otherwise, the internal circuitry may be damaged.
The instrument has been calibrated without taking into account a voltage drop due to the
resistance component of the lead cables for
source. Care must be taken therefore when drawing a load current since the voltage drop due to the
resistance component (approximately 0.1 Ω on a round-trip basis) of the lead cables serves as an error.
6.1 Connecting Cables to Terminals
For DC voltage, thermocouple, frequency, pulse or contact output (Figure 5)
Step 1: Connect the black lead cable for source to the COM output terminal and the red lead cable to
the “VhzTcmA-” output terminal.
Step 2: Connect the other ends of the cables to the input of equipment under test while making sure
the polarities are correct.
Figure 5 Sourcing DC voltage, TC, frequency, pulse and contact output
For DC current (Figure 6)
Step 1: Connect the black lead cable for source to the “VhzTcmA-” output terminal and the red lead
cable to the ‘’mA+’’ output terminal.
Step 2: Connect the other ends of the cables to the input of equipment under test while making sure
the polarities are correct.
Figure 6 Sourcing DC Current
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
For resistance and RTD signal (Figure 7)
Step 1: Connect the black lead cables for source to the ‘’ΩRTD’’ terminal and the red lead cable to the
“VhzTcmA-” terminal.
Step 2: Connect the other ends of the cables to the input of equipment under test while making sure
the polarities are correct.
Figure 7 Sourcing Resistances and RTD
6.2 Sourcing DC Voltage
Step 1: Using the Function selector switch〔
〔FUNC〕
〕to select DC voltage source function, select the
desired range from 100mV, 1V, and 10V by pressing the〔
〔RANG〕
〕key. The default value and unit of
the selected source function and range shall be displayed in the lower part of the LCD.
Step 2: Set the output value digit by digit using 〔〕
〕/〔
〔〕
〕keys.
Each pair of 〔〕
〕/〔
〔〕
〕keys corresponds to each digit of the LCD reading. Each press of the
〔〕
〕/〔
〔〕
〕key increases or decreases the digit. Increasing the digit from 9 or decreasing it from 0
causes the digit to overflow or underflow, allowing you to set the output value without interruption.
Holding down the 〔〕
〕/〔
〔〕
〕key continuously changes the digit in question. And the value won’t
change if it is increased or decreased to the Maxim or Minimum value. Pressing the〔
〔ZERO〕
〕key
initializes the output set point to the default value (0).
Step 3: Pressing the〔
〔ON〕
〕key causes the indicator on the LCD to change from ‘’OFF‘’ to ‘’ON ‘’. The
calibrator sources the preset DC voltage between the output terminals.
Step 4: To turn off the output, press the〔
〔ON〕
〕key once again. The’’ OFF ‘’ appears on the LCD and
no signals sourced between the terminals.
6.3 Sourcing DC Current
Step 1: Using the Function selector switch〔
〔FUNC〕
〕to select the desired source function 20mA .The
default value and unit of the selected source function shall be displayed in the lower part of the LCD.
Step 2: Set the output value digit by digit using〔
〔〕
〕/〔
〔〕
〕keys.
Each pair of〔
〔〕
〕/〔
〔〕
〕keys corresponds to each digit of the LCD reading. Each press of
the〔
〔〕
〕/〔
〔〕
〕key increases or decreases the digit. Increasing the digit from 9 or decreasing it from 0
causes the digit to overflow or underflow, allowing you to set the output value without interruption.
Holding down the〔
〔〕
〕/〔
〔〕
〕key continuously changes the digit in question. And the value won’t
change if it is increased or decreased to the Maxim or Minimum value. Pressing the〔
〔ZERO〕
〕key
initializes the output set point to the default value (0).
Step 3: Pressing the〔
〔ON〕
〕key causes the indicator on the LCD to change from ‘’OFF‘’ to ‘’ON ‘’. The
calibrator sources the preset DC voltage between the output terminals.
Step 4: To turn off the output, press the〔
〔ON〕
〕key once again. The’’ OFF ‘’appears on the LCD and
no signals sourced between the terminals.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
6.3.1 Manual Set 25%, 100% 4–20 mA Function
You can set the source value in 4 mA or 16mA increments or decrements within 4–20 mA current.
Step 1: In DC current function, press the〔
〔25%100%〕
〕key to display “25%SET” on the lower part of
the screen, and press once again to display “100%SET”.The default source value will be showed
simultaneously.
Step 2: Using each pair of 〔〕
〕/〔
〔〕
〕output setting keys, set the signal in a step-by-step manner. In
25% set point condition, you can set the signal in 4 mA increments or decrements in the order 4-8-1216-20 by each press of the key. In 100% set point condition, you can set the signal in 16 mA increments
or decrements in the order 4-20 by each press of the key. Pressing the〔
〔ZERO〕
〕key initializes the
signal set point to the default value (4.00).
Step 3: Pressing the〔
〔ON〕
〕key causes the indicator on the LCD to change from ‘’OFF‘’ to ‘’ON ‘’. The
calibrator sources the preset 4–20 mA current signal between the output terminals.
Step 4: To turn off the output, press the〔
〔ON〕
〕key once again. The’’ OFF ‘’appears on the LCD and
no signals sourced between the terminals.
6.3.2 Auto-stepping and auto-sweeping 4-20mA function
You can set a 4–20 mA range within which to source out current in 4 -20mA increments or decrements
in auto –stepping mode or in auto-sweeping mode. It requires 80 seconds to finish a 4-20mA cycle for
auto-sweeping mode and 20 seconds for auto-stepping mode.
〕key to display auto-stepping mode signal “ ” on the
Step 1: In DC current function, press 〔
”.The default
lower part of the screen, and press once again to display auto-sweeping mode signal “
source value will be showed simultaneously.
Step 2: Pressing the〔
〔ON〕
〕key causes the indicator on the LCD to change from ‘’OFF‘’ to ‘’ON ‘’. The
calibrator sources the default 4–20 mA current signal between the output terminals.
Step 3: Pressing the〔
〔START〕
〕key starts the auto-stepping and auto-sweeping mode. The “RUN “
mark shall be displayed in the lower part of the LCD.
Step 4: Pressing the〔
〔START〕
〕key once more stops the auto-stepping and auto-sweeping mode. The
“RUN “ mark disappears. The terminals source the value displayed on the screen.
Step 5:Pressing the〔
〔ON〕
〕key stops sourcing and ‘’OFF’’ mark displayed on the screen. No signals
sourced between the terminals.
Tips:
Press the 〔START〕
〕key again to continue the auto-stepping and auto-sweeping mode after
stopping them, and “RUN” mark displays on the lower part of the screen.
Using the〔
〔START〕
〕key to start mA auto-stepping and auto-sweeping mode is only available
when the source function is in ON state.
Starting the mA auto-sweeping mode needs to turn off the measurement mode, which is
unavailable when the auto-stepping mode is on. Otherwise, the LCD displays “NO .OP”. Thus, the
mA auto-stepping mode and the measurement function cannot work simultaneously.
6.3.3 mA% display
In mA source function, press the 〔RANGE〕key and converts the preset source value into mA% mode
in the following way, which will be shown on the lower part of the LCD.
100(current measured value mA-4mA)
mA %=
%
16 mA
Press the〔
〔RANGE〕
〕key to return to the current preset value, which will be shown on the lower part of the LCD.
Tips:
You cannot undertake increment or decrement set in mA% mode. To achieve this, you need to press
the 〔RANGE〕
〕 key once more to return back to source set mode.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
6.3.4 4-20 mA simulate transmitter source
Connect the calibrator and the loop power as listed in Figure 8, and operate in steps shown in sourcing
DC current.
Figure 8 4-20 mA simulate transmitter source
6.4 Sourcing Resistance
Firstly, the calibrator sources a resistance signal by receiving the resistance-measuring current I
supplied from the device being calibrated (such as a resistance meter) and then delivering the
voltage V proportional to the preset resistance R between the output terminals, and thus producing
the equivalent resistance R =V/I. Consequently, the calibrator sources the signal correctly only for
such devices that employ this method of measurement.
The allowable range of the resistance measuring current I that the calibrator receives from a
resistance measuring device under calibration is rated as 0.1 to 3 mA. To ensure accuracy, the
resistance measuring current I from the device under calibration shall be strictly confined within the
range. For further details, see Chapter 18, “Specification”.
Any resistance signal being sourced does not include the resistance component of the lead cables
for source. The whole resistance, when measured at the ends of the lead cables for source, is
given by adding the resistance of the lead cables (approximately 0.1 on a round-trip basis) to the
sourced resistance signal. For source of precise resistance signals, use three-wire or four-wire
connection.
If capacitance between the terminals of a device under calibration is greater than 0.1F, the
calibrator may fail to source correct resistance signals.
Step 1: Using the function selector switch 〔FUNC〕
〕, select Ohm function. Using the 〔RANGE〕
〕key,
select the desired range. The selected function and the default range source value and unit shall be
shown in the lower part of the LCD.
Step 2 :Set the output value digit by digit using each pair of〔
〔〕
〕/〔
〔〕
〕keys.
Each pair of〔
〔〕
〕/〔
〔〕
〕keys corresponds to each digit of the LCD reading. Each press of
the〔
〔〕
〕/〔
〔〕
〕key increases or decreases the digit. Increasing the digit from 9 or decreasing it from 0
causes the digit to overflow or underflow, allowing you to set the output value without interruption.
Holding down the〔
〔〕
〕/〔
〔〕
〕key continuously changes the digit in question. And the value won’t
change if it is increased or decreased to the Maxim or Minimum value. Pressing the〔
〔ZERO〕
〕key
initializes the output set point to the default value(0).
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
Figure 9 connection method based on three-wire and four-wire
Step 3: Pressing the〔
〔ON〕
〕key causes the SOURCE indicator on the LCD to change from ‘’OFF‘’ to
‘’ON ‘’. The calibrator sources the preset resistance value between the output terminals.
Step 4: To turn off the output, press the〔
〔ON〕
〕key once again. The ‘’OFF‘’ appears on the LCD and no
signals sourced between the terminals.
The connection method based on three-wire and four-wire are listed in Figure 9:
6.5 Sourcing TC
The calibrator is designed with an internal temperature sensor. To calibrate a device with built-in
reference junction temperature compensation by sourcing a thermoelectromotive force with the
calibrator without using non-external 0C reference junction compensation means, use the RJ sensor
function. Select simulate TC source function, in which RJ senor goes on work automatically. The “RJON” mark displays on the middle part of the screen.
Step 1: Using the function selector switch〔
〔FUNC〕
〕, select simulate TC source function. Using
the〔
〔RANGE〕
〕 key, select the desired range from K, E, J, T, B, N, R, S. The selected function and the
default range source value and unit shall be shown in the lower part of the LCD.
Step 2 :Set the output value digit by digit using each pair of〔
〔〕
〕/〔
〔〕
〕keys.
Each press of the〔
〔〕
〕/〔
〔〕
〕key increases or decreases the digit. Increasing the digit from 9 or
decreasing it from 0 causes the digit to overflow or underflow, allowing you to set the output value
without interruption. Holding down the〔
〔〕
〕/〔
〔〕
〕key continuously changes the digit in question. And
the value won’t change if it is increased or decreased to the Maxim or Minimum value. Pressing
the〔
〔ZERO〕
〕key initializes the output set point to the default value(the default value of a typical B type
is 600℃).
Step 3: Pressing the〔
〔ON〕
〕key causes the SOURCE indicator on the LCD to change from ‘’OFF‘’ to
‘’ON ‘’ . A thermoelectromotive force based on the temperature detected by the RJ sensor develops
between the output terminals.
Step 4: To turn off the output, press the〔
〔ON〕
〕key once again. The ‘’OFF‘’ appears on the LCD and
no signals sourced between the terminals.
Note:
If you don’t need the reference junction compensation, press the〔
〔RJ-ON〕
〕key to shut off. The
calibrator source a value with using external 0℃ reference junction compensation means, and the “RJON” mark vanishes. Press the〔
〔RJ-ON〕
〕key once more to start the reference junction compensation
and the “RJ-ON” mark displays on the middle of the screen.
Tips:
The TC source function is unavailable if the TC /RTD measurement function is on, which is only
usable when the calibrator is in non-TC or RTD measurement function.
Using the reference junction compensation, the present environmental temperature measured by
the RJ sensor is shown on the right conner of the LCD, which disappears when the reference
junction compensation is shut off.
The temperature unit is defaulted as ℃.To convert into ℉,see Chapter 10 “Factory Default” .
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
6.5.1 Temperature Monitor Function
The calibrator offers a temperature monitor function, which is convenient for the user to observe the
voltage value sourced between the output terminals in TC source function.
In TC source function, pressing the〔
〔START〕
〕key ,LCD shows the voltage value sourced between the
output terminals,(varies responding to the changes of the reference junction compensation). Pressing
the 〔START〕
〕key once more, LCD shows the preset temperature value.
Note: the preset value shall be changed only when the temperature displays.
6.6 Sourcing RTD
Firstly, the calibrator sources a resistance signal by receiving the resistance-measuring current I
supplied from the device being calibrated (such as a resistance meter) and then delivering the
voltage V proportional to the preset resistance R between the output terminals, and thus producing
the equivalent resistance R =V/I. Consequently, the calibrator sources the signal correctly only for
such devices that employ this method of measurement.
The allowable range of the resistance measuring current I that the calibrator receives from a
resistance measuring device under calibration is rated as 0.1 to 3 mA. To ensure accuracy, the
resistance measuring current I from the device under calibration shall be strictly confined within the
range. For further details, see Chapter 18, “Specification”.
Any resistance signal being sourced does not include the resistance component of the lead cables
for source. The whole resistance, when measured at the ends of the lead cables for source, is
given by adding the resistance of the lead cables (approximately 0.1 on a round-trip basis) to the
sourced resistance signal. For source of precise resistance signals, use three-wire or four-wire
connection.
Step 1: Using the function selector switch〔
〔FUNC〕
〕, select RTD function. Using the〔
〔RANGE〕
〕key,
select a desired RTD range from PT100, PT200, PT500, PT1000, Cu10, Cu50. The selected function
and the default range source value and unit shall be shown in the lower part of the LCD.
Step 2 :Set the output value digit by digit using each pair of〔
〔〕
〕/〔
〔〕
〕keys.
Each press of the〔
〔〕
〕/〔
〔〕
〕key increases or decreases the digit. Increasing the digit from 9 or
decreasing it from 0 causes the digit to overflow or underflow, allowing you to set the output value
without interruption. Holding down the〔
〔〕
〕/〔
〔〕
〕key continuously changes the digit in question. And
the value won’t change if it is increased or decreased to the Maxim or Minimum value. Pressing
the〔
〔ZERO〕
〕key initializes the output set point to the default value(0).
Step 3: Pressing the〔
〔ON〕
〕key causes the SOURCE indicator on the LCD to change from ‘’OFF‘’ to
‘’ON ‘’ . The calibrator sources the preset resistance value between the output terminals.
Step 4: To turn off the output, press the〔
〔ON〕
〕key once again. The ‘’OFF‘’ appears on the LCD and no
signals sourced between the terminals.
The connection methods based on three-wire and four-wire are shown in Figure 9:
Tips:
The RTD source function is unavailable if the TC /RTD measurement function is on, which is only
usable when the calibrator is in non-TC or RTD measurement function.
6.6.1 Temperature Monitor Function
The calibrator offers a temperature monitor function, which is convenient for the user to observe the
resistance value sourced between the output terminals.
In RTD source function, pressing the〔
〔START〕
〕key ,LCD shows the resistance value sourced between
the output terminals. Pressing the〔
〔START〕
〕key once more, LCD shows the preset temperature value.
Note: the preset value shall be changed only when the temperature displays.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
6.7 Sourcing Frequency
The calibrator can source a constant pulse signal responding to the preset frequency and amplitude.
Step 1: Using the function selector switch〔
〔FUNC〕
〕, select frequency source function. The LCD shows
in the lower part.
the default frequency value10 Hz and the frequency symbol
Step 2: Using the〔
〔RANG〕
〕key, select a desired frequency range from 100Hz, 1KHz,10Hz, 100KHz.
The selected function and the default range source value and unit shall be shown in the lower part of
the LCD.
Step 3: Set the output value digit by digit using each pair of〔
〔〕
〕/〔
〔〕
〕output setting keys.
Each pair of〔
〔〕
〕/〔
〔〕
〕keys corresponds to each digit of the LCD reading. Each press of
the〔
〔〕
〕/〔
〔〕
〕key increases or decreases the digit. Increasing the digit from 9 or decreasing it from 0
causes the digit to overflow or underflow, allowing you to set the output value without interruption.
Holding down the〔
〔〕
〕/〔
〔〕
〕key continuously changes the digit. And the value won’t change if it is
increased or decreased to the Maxim or Minimum value.
Step 4: Pressing the〔
〔VPEAK〕
〕key once switches to amplitude setting mode. The LCD provides a
reading of 1V.
Step 5: Set the output value digit by digit using each pair of〔
〔〕
〕/〔
〔〕
〕output setting keys.
Each pair of〔
〔〕
〕/〔
〔〕
〕keys corresponds to each digit of the LCD reading. Each press of
the〔
〔〕
〕/〔
〔〕
〕key increases or decreases the digit. Increasing the digit from 9 or decreasing it from 0
causes the digit to overflow or underflow, allowing you to set the output value without interruption.
Holding down the〔
〔〕
〕/〔
〔〕
〕key continuously changes the digit . And the value won’t change if it is
increased or decreased to the Maxim or Minimum value.
Step 6: To re-enter into the frequency set mode, press the〔
〔FREQ〕
〕key to set the frequency.
Step 7: Pressing the〔
〔ON〕
〕key causes the SOURCE indicator on the LCD to change from ‘’OFF‘’ to
‘’ON ‘’. The calibrator sources constant pulse signals responding to the preset frequency and amplitude
between the output terminals.
Step 8: To turn off the output, press the〔
〔ON〕
〕key once again. The ‘’OFF‘’ appears on the LCD and no
signals sourced between the terminals.
Tips:
The frequency source function is unavailable if the frequency measurement function is on, which is
only usable when the calibrator is in non-frequency measurement function.
The frequency range could only be changed by pressing〔
〔RANGE〕
〕key in the frequency set
mode.
The frequency value and range could be changed when the frequency source function is both in
‘’ON ‘’ or ‘’OFF‘’ state.
6.8 Sourcing Number of Pulses
The calibrator can source a preset number of pulse signal responding to the preset frequency and
amplitude.
Step 1: Using the function selector switch〔
〔FUNC〕
〕, select pulse source function. The LCD shows the
in the lower part.
default value10 Hz and the number of pulses mark
Step 2: Using the〔
〔RANGE〕
〕key, select a desired frequency range from 100Hz, 1KHz, 10Hz. The
selected function and the default range source value and unit shall be shown in the lower part of the
LCD.
Step 3: Set the output value digit by digit using each pair of〔
〔〕
〕/〔
〔〕
〕output setting keys.
Each pair of〔
〔〕
〕/〔
〔〕
〕keys corresponds to each digit of the LCD reading. Each press of
the〔
〔〕
〕/〔
〔〕
〕key increases or decreases the digit. Increasing the digit from 9 or decreasing it from 0
causes the digit to overflow or underflow, allowing you to set the output value without interruption.
Holding down the〔
〔〕
〕/〔
〔〕
〕key continuously changes the digit . And the value won’t change if it is
increased or decreased to the Maxim or Minimum value.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
Step 4: Pressing the〔
〔VPEAK〕
〕key once switches to amplitude setting mode. The LCD provides a
reading of 1V.
Step 5: Set the output value digit by digit using each pair of 〔〕
〕/〔
〔〕
〕output setting keys.
Each pair of〔
〔〕
〕/〔
〔〕
〕keys corresponds to each digit of the LCD reading. Each press of
the〔
〔〕
〕/〔
〔〕
〕key increases or decreases the digit. Increasing the digit from 9 or decreasing it from 0
causes the digit to overflow or underflow, allowing you to set the output value without interruption.
Holding down the〔
〔〕
〕/〔
〔〕
〕key continuously changes the digit. And the value won’t change if it is
increased or decreased to the Maxim or Minimum value.
Step 6:Pressing the〔CYC〕key ,enter into the pulse number set mode, and the LCD shows the
default number of 1 CYC in the lower part.
Step 7: Set the output value digit by digit using each pair of〔
〔〕
〕/〔
〔〕
〕output setting keys.
Each pair of〔
〔〕
〕/〔
〔〕
〕keys corresponds to each digit of the LCD reading. Each press of
the〔
〔〕
〕/〔
〔〕
〕key increases or decreases the digit. Increasing the digit from 9 or decreasing it from 0
causes the digit to overflow or underflow, allowing you to set the output value without interruption.
Holding down the〔
〔〕
〕/〔
〔〕
〕key continuously changes the digit. And the value won’t change if it is
increased or decreased to the Maxim or Minimum value.
Step 8: To re-enter into the frequency set mode, press the〔
〔FREQ〕
〕key to set the frequency.
Step 9: Pressing the〔
〔ON〕
〕key causes the SOURCE indicator on the LCD to change from ‘’OFF‘’ to
‘’ON ‘’, and the calibrator sources low level between the output terminals.
Step 10: Pressing the〔
〔START〕
〕key the calibrator sources the set number of pulse responding to the
preset frequency and amplitude, LCD shows the symbol “RUN”.
Step 11: When source is complete, the calibrator automatically turns off the output and ceases
operation. The “RUN” symbol disappears from the LCD.
Step 12: To turn off the output, press the〔
〔ON〕
〕key once again. The ‘’OFF‘’ appears on the LCD and
no signals sourced between the terminals.
Tips:
The contact output source function is unavailable if the frequency measurement function is on,
which is only usable when the calibrator is in non-frequency measurement function.
The frequency range of the pulse could only be changed by pressing〔
〔RANGE〕
〕key in the
frequency set mode.
When the “RUN” symbol vanishes from the LCD, you can change the frequency and amplitude
both when the source function is in ‘’ON ‘’ or ‘’OFF‘’.
In the pulse sourcing process, pressing the〔
〔START〕
〕key causes to stop the output, and the
“RUN” mark vanishes from the LCD. Press the〔
〔START〕
〕key once more to restart the sourcing
function.
Restarting the pulse output requires the source function is in ‘’ON ‘’state.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
6.9 Sourcing Contact Output
You can turn on or off the output terminals by using the contact output function. An FET is used as the
contact-switching device.
Step 1: Using the function selector switch 〔FUNC〕
〕, select the contact output source function. The
“symbol.
LCD shows the default value 10Hz,and the “
Step 2: Using the〔
〔RANGE〕
〕key, select the desired frequency from 100Hz, 1KHz, 10 KHz, and
100KHz.
Step 3: Set the output value digit by digit using each pair of〔
〔〕
〕/〔
〔〕
〕output setting keys.
Each pair of〔
〔〕
〕/〔
〔〕
〕keys corresponds to each digit of the LCD reading. Each press of
the〔
〔〕
〕/〔
〔〕
〕key increases or decreases the digit. Increasing the digit from 9 or decreasing it from 0
causes the digit to overflow or underflow, allowing you to set the output value without interruption.
Holding down the〔
〔〕
〕/〔
〔〕
〕key continuously changes the digit . And the value won’t change if it is
increased or decreased to the Maxim or Minimum value.
Step 4:Pressing the〔
〔ON〕
〕key causes the SOURCE indicator on the LCD to change from ‘’OFF‘’ to
‘’ON ‘’.
Step 5: To turn off the output, press the〔
〔ON〕
〕key once again. The ‘’OFF‘’ appears on the LCD and
no signals sourced between the terminals.
Tips:
The contact output source function is unavailable if the frequency measurement function is on,
which is only usable when the calibrator is in non-frequency measurement function.
You cannot set the amplitude and pulse number in contact output function.
The contact output is polarity. Generally, connect the positive polarity with the H jack of the
calibrator and the negative polarity with the L jack.
Note the maxim allowable current of the contact output is 50mA.
6.10 Zero-off function
In any range of DC voltage, DC current, ohm, TC and RTD functions, pressing the〔
〔ZERO〕
〕key
selects clearing off function, which initializes the preset source value for the convenience of user to
reset source value.
In frequency, pulse, contact output functions, the〔
〔ZERO〕
〕key is unavailable.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
7 Measurement
From the calibrator, you can measure a DC voltage, DC current, resistance, thermocouple, RTD,
frequency, continuity and switch.
Warning
In an application where the calibrator is used together with the supplied lead cables for
measurement, the allowable voltage to ground of the input terminals is 60 V maximum. To avoid
electrical shock, do NOT use the calibrator at any voltage exceeding the maximum voltage to
ground.
The allowable voltage to ground when the supplied thermocouple convertor is attached to the input
terminals is 60V peak maximum. To avoid electrical shock, do not use the terminal adapter for
measuring any circuit voltage exceeding the maximum voltage to ground.
Tips:
When turning on the calibrator, the measurement function is in off mode to save battery power. You
need to press the〔
〔ON〕
〕key to facilitate the function.
When the mA source function selects the auto-sweeping mode, you cannot start the measurement
function by pressing the〔
〔ON〕
〕key. Otherwise, the LCD shows “NO. OP”
With the〔
〔HOLD〕
〕key, you can hold the measured value.
When no measurement needs to be made, turn off the MEASURE mode by pressing
the〔
〔ON〕
〕key. The measured value shown on the LCD disappears and power to the internal
measuring circuit is cut off. This strategy saves on battery power.
The reading of a measured value is updated differently responding to different measurement
function. LCD shows “ - - - - - “on the upper part when shifting the range. If the input is over ranged,
the measured value on the LCD reads as “oL”.
7.1 Connecting Cables to Terminals
For DC voltage, Ohm, frequency, consistency or switch measurement (Figure 11)
Step 1: Connect the black lead cable for measurement to the “COM” input terminal and the red lead
cable to the ”VHzTc ΩRTD” input terminal.
Figure 11 Measuring DC voltage, ohms, frequency, continuity and switch
Step 2: Connect the other end of the cable to the measuring terminals of equipment under test while
making sure the polarities are correct.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
Figure 12 Measuring DC current
For DC current signal (Figure 12)
Step 1: Connect the black lead cable for measurement to the “COM” input terminal and the red lead
cable to the ”mA” input terminal.
Step 2: Connect the other end of the cable to the measuring terminals of equipment under test while
making sure the polarities are correct.
For thermocouple signal (Figure 13)
Step 1: Connect the thermocouple convertor to the input terminals. This will help you connect the
cables easily.
Step 2: Connect between TC terminals. The positive output lead wire of the thermocouple to the H
terminal of the thermocouple convertor and the negative output lead wire
Figure 13 Measuring TC to the L terminal.
Three wire connection method for RTD signal (Figure 14)
Step 1: Connect one black lead cable for measurement to the “COM” input terminal and another black
lead to the “3W” terminal. Connect the red lead cable to the ” VHzTcΩRTD” input terminal.
Step 2: Connect the three clips of the cables to the measuring terminals of equipment under test while
making sure the polarities are correct.
Figure 14 RTD signal with 3w method
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
Warning
Before connecting the calibrator to the device under test, cut off the power to the device.
Do not apply any voltage or current exceeding the allowable voltage (55 V) or current (55 mA).
Otherwise, there will be a danger of not only damage to the instrument but also personal injury due
to electrical shock.
Mistaking the H voltage input terminal for the mA current input terminal, and vice versa, when
wiring, is extremely dangerous. NEVER make this mistake.
The current input terminals are equipped with a built-in current input protection fuse. Over-current
input to the terminals will cause the fuse to blow. If the fuse is blown, replace it with one with the
specified ratings. For details on fuse replacement, see” replacing the battery and fuse”.
Warning
If you make a mistake in wiring or in the operating procedure in this measurement task, there will be a
danger of not only damage to the instrument but also personal injury due to electrical shock. Exercise
the utmost care when carrying out the measurement task.
7.2 Measuring DC Voltage
Step 1: Make sure the lead cables for measurement are not connected to the measuring instrument
under test.
Step 2: Using the function selector switch〔
〔FUNC〕
〕, select DC Voltage measurement function.
Step 3: Connect the lead cables for measurement to the measuring terminals of the measuring
instrument under test.
Step 4: Using the〔
〔RANGE〕
〕key, select a desired range from 50mV, 500mV, 5V, 50V. The selected
function and the measured value and unit shall be shown in the upper part of the LCD.
7.3 Measuring DC Current
Step 1: Make sure the lead cables for measurement are not connected to the measuring instrument
under test.
Step 2: Using the function selector switch〔
〔FUNC〕
〕, select DC Current measurement function.
Step 3: Connect the lead cables for measurement to the measuring terminals of the measuring
instrument under test.
Step 4: The selected function and the measured value and unit shall be shown in the upper part of the
LCD.
7.3.1 mA % Display
In mA measurement function, pressing〔RANGE〕key in the following way converts the measured
value into mA% mode, which will be shown on the upper part of the LCD.
100(current measured value mA-4mA)
mA %=
%
16 mA
Press the〔RANGE〕key again to return to the current measured value, which will be shown on the
upper part of the LCD.
7.3.2 Using As 24-V Loop Power Supply
This function helps to turn on a 24V loop power supply connected in line with the measured DC current
circuit, in which you can use the calibrator as a loop power supply to calibrate a 2-wire converter by
undertaking the following steps:
Step 1: When the calibrator is in current measurement function, pressing the〔
〔LOOP〕
〕key causes the
LCD shows LOOP symbol. And the built-in 24V loop power of the calibrator will be turned on.
Step 2: Connect the calibrator with the loop current terminal of the converter as shown in Figure 15.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
Figure 15 Using 24v loop power circuit supply
Note:
Since the function discussed above requires a significant amount of DC current (25 mA), operation on
batteries will reduce the battery life considerably.
7.4 Measuring Resistance
Step 1: Make sure the lead cables for measurement are not connected to the measuring instrument
under test.
Step 2: Using the function selector switch〔
〔FUNC〕
〕, select resistance measurement function.
Step 3: Connect the lead cables for measurement to the measuring terminals of the measuring
instrument under test as shown in Figure 11.
Step 4: Using the measurement〔
〔RANGE〕
〕key, select the desired range from 500Ω,5K.The selected
function and the measured value and unit shall be shown in the upper part of the LCD.
7.5 Measuring Temperature with Thermocouple (TC)
Note:
Any voltage higher than 60V won’t work on the measured circuit if applying the thermocouple convertor
to the given input terminal.
Step 1: Make sure the lead cables for measurement are not connected to the measuring instrument
under test.
Step 2: Using the function selector switch 〔FUNC〕
〕, select TC measurement function. Using the
measurement 〔RANGE〕
〕key, select the desired range from K, E, J, T, B, N, R, S.
Step 3: Connect the thermocouple convertor to the jack under test as shown in Figure 13.The selected
function and the measured value and unit shall be shown in the upper part of the LCD.
Tips:
The TC measurement function is unavailable if the TC/RTD source function is on, which is only
usable when the calibrator is in non-TC/RTD source function.
If there has been a sudden change in the operating ambient temperature of the calibrator, wait until
the built-in reference junction compensation stabilizes. Avoid using the calibrator in locations
exposed to wind from such apparatus as an airconditioner.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
7.5.1 Using RJ sensor
Select TC measurement function, in which RJ senor goes on work automatically, press〔
〔RJ-ON〕
〕key
to shut off. Both the “RJ-ON” mark and the environmental temperature display vanish. Press the〔
〔RJON〕
〕key once more to start the reference junction compensation and the “RJ-ON” mark displays on the
middle of the screen, and the environmental temperature displays on the screen.
7.5.2 Temperature Monitor Function
The calibrator offers a temperature monitor function, which is convenient for the user to observe the
voltage value measured from the input terminals.
In TC measurement function, pressing the〔
〔T.DISPLAY〕
〕key ,the display part shows the voltage value
measured between the input terminals. Pressing the〔
〔T.DISPLAY〕
〕key once more, the display part
shows the measured temperature value.
7.6 Measuring Temperature with RTD
Step 1: Make sure the lead cables for measurement are not connected to the measuring instrument
under test.
Step 2: Using the function selector switch 〔FUNC〕
〕, select RTD measurement function.
Step 3: Connect the lead cables for measurement to the measuring terminals of the measuring
instrument under test as shown in Figure 14.
Step 4: Using the measurement〔
〔RANGE〕
〕key, select a desired range from
PT100,PT200,PT500,PT1000,Cu10,C50.The selected function and the default measured value and unit
shall be shown in the lower part of the LCD.
Tips:
The RTD measurement function is unavailable if the TC /RTD source function is on, which is only
usable when the calibrator is in non-TC or RTD source function.
The calibrator defaults the 3-wire connection method when measuring RTD. When applying the 2wire connection method, connecting the same RTD measurement .Pay special attention to linking
the “COM” and “LOOP” terminals, otherwise, there would be a big error.
7.6.1 Temperature Monitor Function
The calibrator offers a temperature monitor function, which is convenient for the user to observe the
resistance value measured from the input terminals.
In TC measurement function, pressing the〔
〔T.DISPLAY〕
〕key ,the display part shows the resistance
value measured from the input terminals. Pressing the〔
〔T.DISPLAY〕
〕key once more, the display part
shows the measured temperature value.
7.7 Measuring Frequency
Step 1: Make sure the lead cables for measurement are not connected to the measuring instrument
under test.
Step 2: Using the function selector switch〔
〔FUNC〕
〕, select frequency measurement function.
Step 3: Connect the lead cables for measurement to the measuring terminals of the measuring
instrument under test.
Step 4: Using the measurement〔
〔RANGE〕
〕key, select the suitable range from
500Hz,5KHz,50KHz.The selected function and the measured value and unit shall be shown in the
upper part of the LCD.
Tips:
The frequency measurement function is unavailable if the frequency, pulse, contact or pressure source
function is on, which is only usable when the calibrator is in non-frequency, pulse, contact or pressure
source function.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
7.8 Measuring switch
The calibrator could measure the connection or disconnection signal of the switch.
Using the function selector switch 〔FUNC〕
〕, select switch measurement function. LCD displays switch
”on the upper part. The beeper sounds for one second if the state of the switch under
symbol “
measurement is changing.
7.9 Measuring Continuity
Continuity measurement is used to detect the intactness of the circuit (e.g. a resistance lower than 50).
Using the function selector switch〔
〔FUNC〕
〕, select continuity measurement function. LCD displays
”on the upper part. Connecting the devices as shown in Figure 11,the beeper
continuity symbol “
sounds continuously if the loop circuit resistance under measurement is less than 50Ω,and LCD shows
the present measured resistance value.
7.10 Measurement-filtering function
Selecting measurement-filtering function stabilizes the measured value displayed on LCD.
In DCV, DCmA, OHM, TC, RTD function, pressing the〔
〔AVG〕
〕key causes calculation of the average of
the samples. LCD shows the “AVG” symbol. Repressing the〔
〔AVG〕
〕key cancels the calibration and
the “AVG” symbol disappears.
7.11 Measured Value holding function
Apart from the continuity and switch measurement functions, the reading-hold function can also be
used to preserve the current measured value on the upper part of LCD, which consequently doesn’t
refresh the measured value.
Pressing the〔
〔HOLD〕
〕key selects reading-hold mode, and LCD displays “HOLD” symbol. To cancel
the selection, press the〔
〔HOLD〕
〕key again and the “HOLD” symbol disappears.
8 Environmental Temperature Test
The calibrator can measure the surrounding environmental temperature, and displays it on the top right
corner. After turning on the calibrator, to observe the shrouding environment, pressing
the〔
〔TEMP〕
〕key causes LCD displays the temperature value and the unit in the top right corner.
Repressing the〔
〔TEMP〕
〕key cancels the measurement and the symbol disappears.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
9 Factory Default
You can reset the factory default of the calibrator.
When turning on the calibrator, pressing the〔
〔HOLD〕
〕key immediately to enter the default set. And the
“SPFC” symbol is shown on the top right corner. LCD displays the default function on the upper part
and the default value on the lower part.
9.1 Setting Auto -power off time
Step 1: Pressing the MEASURE〔
〔ON〕
〕key, LCD displays “AP.OFF” symbol on the upper part,
indicating automatic power- off setting mode.
Step 2: Set the time within 0-60 minute range by using the second pair of 〔〕
〕/〔
〔〕
〕counting from
right to left.
Each press of the〔
〔〕
〕/〔
〔〕
〕key causes 10 -minute increments or 10- minute decrement with
constant setting. Constant press of the key causes increments or decrement of the value in sequence.
The value won’t change when reaching the maximum or minimum value. The time unit is minute.
Step 3: Pressing the SOURCE〔
〔ON〕
〕key, LCD displays “SAVE” symbol on the upper part for 1s.
Tips:
Zero default value (0) represents no automatic power-off function.
9.2 Setting Backlight time
Step 1: Pressing the MEASURE〔
〔ON〕
〕key ,LCD displays “BL.OFF” symbol on the upper part,
indicating backlight time setting mode.
Step 2: Set the time by using the pair of 〔〕
〕/〔
〔〕
〕. And the unit is second.
Each pair of〔
〔〕
〕/〔
〔〕
〕keys corresponds to each digit of the LCD reading. Each press of
the〔
〔〕
〕/〔
〔〕
〕key increases or decreases the digit. Increasing the digit from 9 or decreasing it from 0
causes the digit to overflow or underflow, allowing you to set the output value without interruption.
Holding down the〔
〔〕
〕/〔
〔〕
〕key continuously changes the digit . And the value won’t change if it is
increased or decreased to the Maxim or Minimum value. The setting range is confined within 0-3600
seconds.
Step 3: Pressing the SOURCE〔
〔ON〕
〕key, LCD displays “SAVE” symbol on the upper part for 1s.
Tips:
When the default value is 0, the backlight won’t be off automatically if turned on except that you turn it
off manually.
9.3 Setting temperature unit
Step 1: Pressing the MEASURE〔
〔ON〕
〕key ,LCD displays “TEM.U” symbol on the upper part,
indicating temperature unit setting mode.
Step 2: Shifting between the ℃and ℉ by using the right pair of 〔〕
〕/〔
〔〕
〕.
Step 3: Pressing the SOURCE〔
〔ON〕
〕key, LCD displays “SAVE” symbol on the upper part for 1s.
9.4 Setting frequency
Step 1: Pressing the MEASURE〔
〔ON〕
〕key ,LCD displays “FRSET” symbol on the upper part,
indicating frequency setting mode.
Step 2: Shifting between the 50Hz and 60Hz by using the right pair of 〔〕
〕/〔
〔〕
〕.
Step 3: Pressing the SOURCE〔
〔ON〕
〕key, LCD displays “SAVE” symbol on the upper part for 1s.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
9.5 Factory default
Step 1: Pressing the MEASURE〔
〔ON〕
〕key ,LCD displays “FACRY” symbol on the upper part,
indicating factory default.
Step 2: Pressing the SOURCE〔
〔ON〕
〕key, LCD displays “SAVE” symbol on the upper part for 1s. All
settings are defaulted as below:
AP.OFF: 10min.
BL.OFF: 10sec.
TMP.U: ℃.
FRSET: 50 Hz.
Tips:
Any change of setting to the above-mentioned function, press the SOURCE 〔ON〕
〕 key to save the
value. Any press of the SOURCE〔
〔ON〕
〕key saves the nearest setting value.
10 Replacing Batteries or fuse:
Warning
To avoid possible electric shock, remove the test leads from the calibrator before open the battery door.
And make sure the battery door is tightly closed before turning on the calibrator.
Caution
To avoid possible linkage of the liquid and explosion of the battery, make sure to place the battery
with right polarity.
Do not operate the battery in short-circuit.
Do not disassemble or heating the battery or throw them into the fire
When replacing, use only four same specified ones.
Take out the battery if you don’t operate the meter for a long time.
Step 1: Remove the test leads and Charger before replacing batteries or fuse, and turn off the meter.
Figure 22 Replacing batteries and fuses
Step 2: Remove the protector as shown in Figure 22. With a standard blade hand screwdriver, turn
each battery door screw a quarter counterclockwise to remove the battery door.
Step 3:Replace with four new AAA alkaline batteries under the instructions shown on the battery door.
Or replace the blown fuses with same type F1 (50mA/250V) or F2 (63mA/250V).
Step 4:Reinstall and tighten the battery door, put on the protector before using the meter.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
10 How to use the charger
Warning
The charger could be used only to specified product.
Make sure the voltage of the AC power is same with the given voltage of the charger before
connecting them.
Do not shut circuit the output plug of the charger.
Do not charge non-Ni-Cd, non-Ni-MH battery or wasted battery.
Step 1:Turn off the calibrator.
Step 2:Connect the plug into the charging jack of the terminal.
Step 3:Plug the charger into the AC power.
Note:
In normal charging function, the indicating light of the charger lights on.
When finished, the charging function stops automatically, and the indicating light becomes dark.
Blinking of the indicating light means the charger is not connected or no battery is inside.
Note:
Do not use the calibrator when it undergoes charging, otherwise, the charging will be prolonged.
11 Maintenance
11.1 Cleaning the calibrator
Warning
To avoid electrical shock or damaging the meter, serve the meter only by the replacement parts
specified and never get water inside the case.
Caution
To avoid damaging the plastic lens and case, do not use solvents or abrasive cleansers.
Clean the Calibrator with a soft cloth dampened with water or water and mild soap.
11.2 Calibration or Sending to the Service Center
Calibration, maintenance or repair work unmentioned in this manual should be undertaken by the
experienced worker. If the meter operates abnormally, inspect the batteries first and replace them if
necessary.
If you suspect that the meter has failed, review this manual to make sure you are operating it
correctly. If the meter still fails to operate properly, pack it securely (in its original container if
available) and forward it, postage paid, to the nearest Service Center. The company assumes
NO responsibility for damage in transit.
The Company guarantees a rapid repair and maintenance and delivers the meter back as soon
as possible. Please refer to the Warranty. If the warranty is due, you will be billed for the
maintenance and repair work. If the calibrator or the pressure module is not within the Warranty
range, you can contact the warranted service center for enquiring about the expenditure. Please
refer to the Chapter “Contact Us” to find a warranted service center.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
12 Specifications
These specifications assume:
A 1-year calibration cycle
An operating temperature of 18°C to 28°C
Relative humidity of 35% to 70% (non_condensing)
Accuracy is expressed as ± (percentage of reading + percentage of range).
12.1 General Specifications for measure
Function
Referenc
e
50mV
Range
Resol.
Accuracy
Remark
-5.000mV～
55.000mV
1µV
0.02+0.02
500mV
-50.00mV～
550.00mV
10µV
0.02+0.01
Input
Resistance:
100MΩ
5V
-0.5000V～
5.5000V
0.1mV
0.02+0.01
50V
-5.000V～
55.000V
1mV
0.03+0.01
DCmA
50mA
-5.000mA～
55.000mA
1µA
0.02+0.01
OHM
500Ω
Test Current:
Approximately 1mA
0.00Ω～550.00Ω
0.01Ω
0.05+0.02
5KΩ
0.0000 KΩ～
5.5000KΩ
0.1Ω
0.05+0.02
500Hz
3Hz～500.00Hz
0.01Hz
±2digit
5KHz
3Hz～
5.0000KHz
0.1Hz
50KHz
3Hz～50.000KHz
1Hz
Input
Impedance:
100 kΩ at
least;
Sensitivity:
3Vp-p
minimum;
Duty Cycle:
50%.
R
0°C～1767°C
1°C
0～500°C: 1.8°C
S
0°C～1767°C
K
-100.0°～1372.0°C
By using ITS90
temperature
scale;
The accuracy
does not
include the
error of
internal
DCV
Test Current:
Approximately
0.1mA
FREQ
TC
500～1767°C: 1.5°C
0.1°C
-100.0～0℃: 1.2℃
0～1372.0℃: 0.8℃
E
-50.0°C～1000.0°C
-50.0℃～0℃: 0.9℃
0～1000.0℃: 1.5℃
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
Input
Resistance:
1MΩ
Shunt
Resistance:
10Ω
Open Circuit
Voltage:
about 2.5V;
Does not
include lead
resistance;
www.elmtec.de • | [email protected]
J
-60.0°C～1200.0°C
-60.00℃ : 1.0℃
0～1200.0℃ : 0.7℃
T
-100.0°C～400.0°C
-100.0～0℃ : 1.0℃
temperature
compensation
caused by a
sensor;
0～400.0℃ : 0.7℃
N
-200.0°～1300.0°C
-200.0～0℃ : 1.5℃
0～1300.0℃ : 0.9℃
B
600°C～1820°C
1°C
600～800℃ : 2.2℃
800～1000℃ : 1.8℃
1000～1820℃ : 1.4℃
RTD
Pt100
385
-200.0°C ～800.0°C
0.1°C
-200.0～0℃: 0.5℃
0～400.0℃: 0.7℃
400.0～800.0℃: 0.8℃
Pt1000
385
-200.0°C～630.0°C
By using
Pt100-385
Does not
include lead
resistance.
-200.0～100.0℃: 0.3℃
100.0～300.0℃: 0.5℃
300.0～630.0℃: 0.7℃
Pt200
385
-200.0°C～630.0°C
-200.0～100.0℃: 0.8℃
100.0～300.0℃: 0.9℃
300.0～630.0℃: 1.0℃
Pt500
385
-200.0°C～630.0°C
-200.0～100.0℃: 0.4℃
100.0～300.0℃: 0.5℃
300.0～630.0℃: 0.7℃
Cu10
-100.0°C～260.0°C
1.8℃
Cu50
-50.0°C～150.0°C
0.7℃
SWITCH
CONT.
CLOSE / OPEN
500Ω
≤50Ω sound
0.01Ω
0.05+0.05
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
Approximately
1mA Test
Current
Short circuit
display :
CLOSE，
Open circuit
display:
OPEN；
Threshold
value about
200~300Ω
Approximately
1mA Test
Current
www.elmtec.de • | [email protected]
Other feature:
Rate:
Measurement function
DCV、DCI、OHM、TC
RTD
FREQ
CONT.
PRESSURE
Rate
2 Readings per Second about
1 Readings per Second about
0.5 Readings per Second about
4 Readings per Second about
1.5 Readings per Second about
DCV
Normal Mode Rejection Ratio (NMRR) ≥60dB (at 50Hz or 60Hz)
Common Mode Rejection Ratio (CMRR) ≥140dB (at 50Hz or 60Hz)
Temperature Coefficient: 0.1 times the applicable accuracy specification per degree C for 5°C
to 18°C and 28°C to 40°C
The range of the internal temperature compensation sensor is from -10℃ to 50℃,
compensation error≤ 0.5°C
Maximum voltage between VΩ Hz terminal and COM terminal: 60 Vp-p
Maximum Input current: 60mA.
Protected with a 63mA, 250V fast blow fuse
12.2 General Specifications for Source
Function
Reference
Range
Resol.
Accuracy
Remark
DC voltage
100mV
-10.000mV～110.000mV
1µV
0.02+0.01
Maximum output current:
0. 5mA
1V
-0.10000V～1.10000V
10µV
0.02+0.01
Maximum output current: 2mA
10V
-1.0000V～11.0000V
0.1mV
0.02+0.01
Maximum output current: 5mA
DC current
20mA
0.000mA～22.000mA
1µA
0.02+0.025
Resistance
400Ω
0.00Ω～400.00Ω
0.01Ω
0.02+0.025
4KΩ
0.0000 KΩ～4.0000 KΩ
0.1Ω
0.05+0.025
40KΩ
0.000 KΩ～40.000 KΩ
1Ω
0.1+0.1
R
0°C～1767°C
1°C
0～100℃ : 1.5℃
External supply for simulate
mA: 5V–28V
Maximum load 1KΩ at 20mA
Excitation current: ± 0.5–3
mA;
if ± 0.1–0.5, add 0.1Ω;
Accuracy does not include
lead resistance;
Excitation current: ±0.05 –
0.3mA;
Does
not
include
lead
resistance;
Excitation current: ±0.01mA;
Does
not
include
lead
resistance;
By using ITS-90 temperature
scale;
The accuracy does not
include the error of internal
temperature
compensation
caused by a sensor;
TC
100～1767℃: 1.2℃
S
0°C～1767°C
0～100℃ : 1.5℃
100～1767℃: 1.2℃
K
-200.0°C～1372°C
0.1°C
-200～-100 : 0.6℃
-100～400℃:0.5℃
400～1200℃: 0.7℃
1200～1372 :0.9℃
E
-200.0°C～1000°C
-200～-100 : 0.6℃
-100～600℃:0.5℃
600～1000℃: 0.4℃
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]
J
-200.0°C～1200°C
-200～-100 : 0.6℃
-100～800℃:0.5℃
800～1200℃: 0.7℃
T
-250.0°C～400°C
N
-200.0°C～1300.0°C
-250～400℃: 0.6℃
-200～-100℃: 1.0℃
-100～900℃: 0.7℃
900～1300℃: 0.8℃
B
600°C～1820°C
1°C
600～800℃ : 1.5℃
800～1820℃: 1.1℃
RTD
Pt100-385
-200.0°C～800.0°C
0.1°C
-200～0℃ : 0.3℃
0～400℃ : 0.5℃
400～850℃ : 0.8℃
Pt200-385
-200°C～630°C
-200～100°C: 0.22°C
100～300°C : 0.3°C
300～630°C : 0.4°C
Pt500-385
-200°C～630°C
-200～100°C: 0.22°C
By using Pt100-385
Excitation
current:
±0.5～±3mA for Pt100,
Cu10, Cu50;
Excitation
current:
±0.05mA～±0.3mA for PT200,
PT500, PT1000;
Does
not
include
lead
resistance.
100～300°C : 0.3°C
300～630°C : 0.4°C
Pt1000-385
-200°C～630°C
-200～100°C: 0.22°C
100～300°C : 0.3°C
300～630°C: 0.4°C°C
Cu10
-100.0°C～260.0°C
-100～260℃ : 2℃
Cu50
-50.0°C～150.0°C
-50～150℃ : 0.6℃
FREQ
PULSE
SWITCH
LOOP
100Hz
1.00Hz～110.00Hz
0.1Hz
1KHz
0.100KHz～1.100KHz
1Hz
10KHz
1.0KHz～11.0KHz
0.1KHz
100KHz
1KHz～110KHz
2KHz
100Hz
0.1Hz
1KHz
1Hz
10KHz
0.1KHz
100Hz
0.1Hz
1KHz
1Hz
10KHz
0.1KHz
100KHz
2KHz
24V
±2 count
Output voltage: +1~+11 Vp-p
(zero base waveform);
Amplitude accuracy: ±(5%
+0.5V);
Maximum load: >100 KΩ;
Duty Cycle: 50%.
±2 count
±2 count
±10%
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
FET switch
Maximum open/close voltage:
+28 V
Maximum open/close current::
50mA
Maximum current: 22 mA
Short circuit protected
www.elmtec.de • | [email protected]
Other feature:
Temperature Coefficient: 0.1 times the applicable accuracy specification per degree C for 5°C
to 18°C and 28°C to 40°C.
The range of the internal temperature compensation sensor is from -10℃ to 50℃
Maximum voltage between any output terminal and earth: 30V DC
Maximum output current: Approximately 25mA.
13 Points for Attention to Use of Operation Instruction
The present operation instruction is subject to change without notice.
The content of the operation instruction is regarded as correct. Whenever any user finds its
mistakes, omission, etc, he or she is requested to contact the manufacturer.
The present manufacturer is not liable for any accident and hazard arising from any
maoperation.
The functions described in this operation instruction should not be used as grounds to apply
this product to a particular purpose.
ELMTEC Ing. GmbH • Kattreppeln 28 • 38154 Königslutter • 05353 / 9545 - 0 •
www.elmtec.de • | [email protected]